PowerLight Series Technical & Service Manual Brandname: QSC Category: Amplifier Total Pages: 100 Table of contents PowerlightSeries3Powerlight904TableofContents5PerformanceSpecifications61Introduction714SeriesDescription8TheoryofOperation92ServicingTheAmplifier10Reassembly1322TheDisplayBoard15120VVersion1624PowerSupplyServicing1725AcVoltageConversions243Troubleshooting2533FurtherTroubleshooting264Parts27